oh yeah, the 383 is line boared,ballanced.dart pro 1 heads.weiand single plane.11.1 to 1 comp.rite on the ragged edge of pump gas. the rear end is a 9" ford,35 spline,4-56 strange punkin.700r4 for now.as long as it will last.on the street we need the od.it will run somewhere around 2400-2500 rpm's at 60 in od.and we have cold air.us old folks need that a/c.